Embryonic Development Process

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Questions and Answers

What is the name given to each daughter cell produced by cleavage?

  • Blastomere (correct)
  • Somatic cell
  • Germ cell
  • Embryonic cell

Approximately how many days after fertilization does a 16-cell conceptus reach the uterus?

  • 7 days
  • 1 day
  • 3 days (correct)
  • 10 days

What is the name of the structure that forms around a fluid-filled cavity in the blastocyst?

  • Chorion
  • Trophoblast
  • Morula
  • Blastocoel (correct)

Which cells within the blastocyst are fated to become the embryo?

<p>Inner cell mass (D)</p> Signup and view all the answers

What is the function of trophoblasts in embryonic development?

<p>Providing nourishment and feeding (B)</p> Signup and view all the answers

Which term describes the compacted 16-cell conceptus that looks like a solid mass?

<p>Morula (C)</p> Signup and view all the answers

What is the function of the chorionic sac and the fetal portion of the placenta?

<p>Nutrient, waste, and gas exchange (A)</p> Signup and view all the answers

During which stage is each cell totipotent, capable of differentiating into any cell type in the human body?

<p>Second week (D)</p> Signup and view all the answers

What process involves the conceptus breaking free of the zona pellucida in preparation for implantation?

<p>Hatching (A)</p> Signup and view all the answers

What is the main function of the yolk sac during weeks 2 and 3 of development?

<p>Supply nutrients and primitive blood circulation. (A)</p> Signup and view all the answers

Which embryonic membrane surrounds the embryo and fills with amniotic fluid?

<p>Amnion (A)</p> Signup and view all the answers

At approximately week 8, what substance is added to amniotic fluid as the fetus's kidneys start to function?

<p>Urine (C)</p> Signup and view all the answers

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